Daily Report for 14th November 2016

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.6 °C (-0.9) 00:07 3.7 °C (-2.4) 10.0 °C (+4.5), 2020 3.9 °C (-1.6), 2019
Maximum Temperature 13.1 °C (+2.6) 23:48 9.7 °C (-1.5) 15.4 °C (+4.9), 2009 8.2 °C (-2.3), 2019
Mean Temperature 10.1 °C (+0.8) 6.8 °C (-2.0) 12.6 °C, 2020 5.7 °C, 2019
Minimum Humidity 79% 08:34 68% 92%, 2011 62%, 2013
Maximum Humidity 81% 01:10 81% 98%, 2011 81%, 2016
Mean Humidity 80% 76% 96%, 2022 76%, 2013
Minimum Pressure 1026 hPa 23:02 1010 hPa 1031 hPa, 2024 988 hPa, 2009
Maximum Pressure 1031 hPa 05:08 1018 hPa 1034 hPa, 2024 1001 hPa, 2014
Mean Pressure 1029 hPa 1014 hPa 1032 hPa, 2024 996 hPa, 2019
Mean Wind Speed 5.2 mph (+0.6) 5.2 mph (+0.6) 9.9 mph, 2009 1.8 mph, 2022
Maximum Wind Speed 13.5 mph 23:04 15.6 mph 24.5 mph, 2009 6.7 mph, 2012
Maximum Gust 22.6 mph 23:00 24.5 mph 38.5 mph, 2009 9.4 mph, 2012
Mean Wind Direction W
Rainfall 0.9 mm 42.9 mm (137%) 12.4 mm, 2023
Maximum Hourly Rain 0.7 mm 12:04 7.5 mm, 2014
Maximum 10-min Rain 0.4 mm 11:53 2.4 mm, 2023
Maximum Rain Rate 2.2 mm/h 11:53 24 mm/h, 2014
Minimum Dew Point 1.4 °C 00:07 -0.1 °C 8.1 °C, 2022 0.6 °C, 2013
Maximum Dew Point 9.7 °C 23:48 5.3 °C 12.7 °C, 2015 5.4 °C, 2019
Mean Dew Point 6.8 °C 2.8 °C 10.8 °C, 2020 3.5 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 4.5 °C * 23:44 4.3 °C 11.3 °C, 2014 4.1 °C, 2017
Day Maximum (09-21) * 12.9 °C * 20:43 9.7 °C 14.1 °C, 2020 8.2 °C, 2019
Max 10m Temp Rise 0.3 °C 01:33 0.4 °C 0.5 °C, 2009 0.1 °C, 2011
Max 1hr Temp Rise 1.1 °C 02:16 1.3 °C 1.9 °C, 2009 0.4 °C, 2011
Max 1hr Hum Rise 1% 01:01 4% 10%, 2009 1%, 2011
Max 10m Temp Fall 0.0 °C 00:10 0.3 °C 1.2 °C, 2023 0.0 °C, 2016
Max 1hr Temp Fall 0.0 °C 17:03 1.3 °C 2.4 °C, 2014 0.0 °C, 2016
Max 1hr Hum Fall 1% 02:19 5% 19%, 2009 1%, 2015
Max 10m Wind Speed 11.5 mph 22:51 12.1 mph 17.2 mph, 2009 5.0 mph, 2012
Minimum Feels-like 2.7 °C 00:01 -0.1 °C 10.2 °C, 2018 0.5 °C, 2019
Maximum Feels-like 14.2 °C 23:38 9.2 °C 17.1 °C, 2009 8.2 °C, 2019
Mean Feels-like 9.9 °C 4.8 °C 14.3 °C, 2020 3.9 °C, 2019
Air-frost Hrs 0 hrs 0.1 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.5 °C (+3.5) 6.1 °C (+1.0) 8.5 °C (+3.5), 2016 1.7 °C (-3.3), 2011
Humidity Range 2% 13% 26%, 2013 2%, 2016
Pressure Range 5 hPa 7 hPa 17 hPa, 2009 2 hPa, 2024
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]42 hrs (103%) [37%] 7.5 [94%], 2018 0 [0%], 2010
Wet Hours 1
[Mean rain rate: 0.9 mm/h]		34 hrs (116%) [10%] 10, 2015 0, 2011
Cloud Cover Overcast
Events None
Comments 12 Rain
Extra Comments Interesting: At no point was the temperature lower than that of any previous minute in the day; a max -ve temp change of 0 for both 10m and 1hr
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 14th November 2016.
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs are derived based on analysis of webcam observations, but may use data from our closest site, Heathrow, when needed.
Wet hrs are dervied algorithmically from rainfall data, though may be adjusted manually.
Rainfall totals may be manually adjusted after the fact to correct delayed or erroneous data.
Cloud cover and Events are manually reported, often with multi-week delays.
Data is generally reliable and accurate but should always be viewed with some quantity of salt to hand.
View monthly summary

Daily Graph of Conditions

day graph

Webcam Summary of Cloud Conditions

daycamsumLarge resolution version

Wind rose